Originally Posted by ZeCanon

Do NOT run Maxxlite 310's on anything other than an easy shorttrack course. They are fast as hell for their intended application, but they are not a true mtb tire in any way, shape of form. Even for ST I run them rear only.

If you want light tubeless, you have to ditch UST. On of my new favorite tires is the Crossmark from maxxis - hooks up well in corners and rolls very fast, and isn't too heavy either. My exception series pair came in at 512 and 515grams. Throw some homemade sealant in and you're golden. I think they do come in UST too, but that tends to add about 140g to each tire. Not worth it, IMO.